/
bind.go
85 lines (73 loc) · 1.79 KB
/
bind.go
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mobile
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
"golang.org/x/tools/go/packages"
)
// pkg, tmpdir in build.go
func copyFile(dst, src string) error {
if buildX {
printcmd("cp %s %s", src, dst)
}
return writeFile(dst, func(w io.Writer) error {
if buildN {
return nil
}
f, err := os.Open(filepath.Clean(src))
if err != nil {
return err
}
defer f.Close()
if _, err := io.Copy(w, f); err != nil {
return fmt.Errorf("cp %s %s failed: %v", src, dst, err)
}
return nil
})
}
func writeFile(filename string, generate func(io.Writer) error) error {
if buildV {
fmt.Fprintf(os.Stderr, "write %s\n", filename)
}
err := mkdir(filepath.Dir(filename))
if err != nil {
return err
}
if buildN {
return generate(ioutil.Discard)
}
f, err := os.Create(filename)
if err != nil {
return err
}
defer func() {
if cerr := f.Close(); err == nil {
err = cerr
}
}()
return generate(f)
}
func packagesConfig(targetOS, targetArch string) *packages.Config {
config := &packages.Config{}
// Add CGO_ENABLED=1 explicitly since Cgo is disabled when GOOS is different from host OS.
config.Env = append(os.Environ(), "GOARCH="+targetArch, "GOOS="+targetOS, "CGO_ENABLED=1")
if targetOS == "android" {
// with Cgo enabled we need to ensure the C compiler is set via CC to
// avoid the error: "gcc: error: unrecognized command line option '-marm'"
config.Env = append(os.Environ(), androidEnv[targetArch]...)
}
tags := buildTags
if targetOS == "darwin" {
tags = append(tags, "ios")
}
if len(tags) > 0 {
config.BuildFlags = []string{"-tags=" + strings.Join(tags, ",")}
}
return config
}